[clang] [llvm] [AMDGPU] Adding the amdgpu-num-work-groups function attribute (PR #79035)

[Erich Keane via llvm-commits]

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@@ -2705,6 +2705,30 @@ An error will be given if:
   }];
 }
 
+def AMDGPUNumWorkGroupsDocs : Documentation {
+  let Category = DocCatAMDGPUAttributes;
+  let Content = [{
+The number of work groups specifies the number of work groups when the kernel
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erichkeane wrote:

I think this needs more elaboration... "The number of work groups specifies the number of work groups" is a tautology. 

https://github.com/llvm/llvm-project/pull/79035